Add full guild emoji functionality (#749)

* all the emoji stuff

* fix things for hydra 😘

* feck i need to stop committing on github

* update docs again

* Butts

src/client/actions/ActionsManager.js

@@ -20,6 +20,9 @@ class ActionsManager {
     this.register('UserGet');
     this.register('UserUpdate');
     this.register('GuildSync');
+    this.register('GuildEmojiCreate');
+    this.register('GuildEmojiDelete');
+    this.register('GuildEmojiUpdate');
   }
 
   register(name) {

src/client/actions/GuildEmojiCreate.js

@@ -0,0 +1,18 @@
+const Action = require('./Action');
+
+class EmojiCreateAction extends Action {
+  handle(data, guild) {
+    const client = this.client;
+    const emoji = client.dataManager.newEmoji(data, guild);
+    return {
+      emoji,
+    };
+  }
+}
+
+/**
+ * Emitted whenever an emoji is created
+ * @event Client#guildEmojiCreate
+ * @param {Emoji} emoji The emoji that was created.
+ */
+module.exports = EmojiCreateAction;

src/client/actions/GuildEmojiDelete.js

@@ -0,0 +1,18 @@
+const Action = require('./Action');
+
+class EmojiDeleteAction extends Action {
+  handle(data) {
+    const client = this.client;
+    client.dataManager.killEmoji(data);
+    return {
+      data,
+    };
+  }
+}
+
+/**
+ * Emitted whenever an emoji is deleted
+ * @event Client#guildEmojiDelete
+ * @param {Emoji} emoji The emoji that was deleted.
+ */
+module.exports = EmojiDeleteAction;

src/client/actions/GuildEmojiUpdate.js

@@ -0,0 +1,27 @@
+const Action = require('./Action');
+const Constants = require('../../util/Constants');
+
+class GuildEmojiUpdateAction extends Action {
+  handle(data, guild) {
+    const client = this.client;
+    for (let emoji of data.emojis) {
+      const already = guild.emojis.has(emoji.id);
+      emoji = client.dataManager.newEmoji(emoji, guild);
+      if (already) client.emit(Constants.Events.GUILD_EMOJI_UPDATE, guild, emoji);
+    }
+    for (let emoji of guild.emojis) {
+      if (!data.emoijs.has(emoji.id)) client.dataManager.killEmoji(emoji);
+    }
+    return {
+      emojis: data.emojis,
+    };
+  }
+}
+
+/**
+ * Emitted whenever an emoji is updated
+ * @event Client#guildEmojiUpdate
+ * @param {Guild} guild The guild that the emoji was updated in.
+ * @param {Emoji} emoji The emoji that was updated.
+ */
+module.exports = GuildEmojiUpdateAction;